// 函数组合  调试
// NEVER SAY DIE   --->  never-say-die
const _ = require('lodash');

const log = v => {
    console.log(v);
    return v;
}

const trace = _.curry((tag, v) => {
    console.log(tag, v);
    return v;
})
// _.split
const split = _.curry((sep, str) => _.split(str, sep));

// _.toLower

// _.join();
const join = _.curry((sep, array) => _.join(array, sep));

const map = _.curry((fn, array) => _.map(array, fn));

const f = _.flowRight(join('-'), trace("map之后"), map(_.toLower), trace("split之后"), split(" "));


console.log(f('NEVER SAY DIE'));